The young woolly mammoth's brain is the only such practically intact specimen known, revealing even the folds and vessels to scientists. The well-preserved remains of the ice age beast were discovered in the Siberian permafrost.

The American chestnut tree was practically wiped out from the eastern United States 100 years ago by a deadly fungus, but now, thanks to a tweaked gene, researchers are growing trees that appear to be resistant.

An orphaned sea otter pup, just a week old and underweight, was rescued from a beach in California last month. Now, the camera-friendly creature is starting over in the Midwest, with 24-hour care at Chicago's Shedd Aquarium.

Scientists reveal they can monitor "uncontacted tribes" in the Amazon rainforest using satellites, which would allow safe, inexpensive and noninvasive tracking of these tribes in order to protect them from outside threats.

The wreck of a 17th-century Dutch warship has been discovered off the coast of Tobago. Marine archaeologists believe the vessel is possibly Huis de Kreuningen, which was lost during a bloody fight between Dutch and French colonists.

The Earth will never catch up to the moon (let's hope), but the number of Ordovician craters may soon takeoff. That's because it's easier and cheaper than ever to sniff out the shocked minerals that confirm an impact.

Huge stone circles discovered by air in the Middle East have been imaged with high resolution, revealing their age and other intriguing details. Here's a look at the "Big Circles," which have puzzled scientists for decades.

The hunt for Amelia Earhart's lost plane will continue next summer. A team will investigate an underwater "anomaly" detected off the coast of the tiny Pacific atoll Nikumaroro. The group thinks it could be the wreckage of Earhart's aircraft.

Weeks of grim waiting ended yesterday (Oct. 28) for two homeowners in Hawaii's Pahoa village, as they became the first to lose their yards and fences to the relentless river of lava from Kilauea volcano.

The frankenstorm has spurred an unprecedented amount of research to tackle the questions about the role climate change may have played in worsening the storm, how global warming might affect similar storms, and why Sandy caused so much damage.

Mammoth bones more than 70,000 years old emerged from the eroded river banks of a reservoir in Idaho this month. Paleontologists and students raced to rescue part of the beast's skull and a tusk, but they suspect more lies below the surface.